JP4862938B2 - Container with pallet rack, pallet rack unit and pallet rack - Google Patents

Description

  The present invention relates to a pallet rack, a pallet rack unit, and a container provided with a pallet rack that are used when various articles are placed, transported, and stored.

Conventionally, when goods are transported and stored, the goods loaded on the pallet are stored in a container while the goods are loaded on the pallet, and the containers are transported by vehicle, freight car, ship, aircraft, etc. (Patent Document 1). reference).
For example, when an article to be loaded is a thing that is not easily damaged even when stacked, such as a carton of a milk pack, the article is directly stacked on a pallet. Then, a pallet is installed on the article, and further, the article is directly stacked thereon and stacked.
However, if the article is a precision product using a glass plate such as a solar panel, a semiconductor panel, or a liquid crystal panel (hereinafter simply referred to as a panel), the lower article may be damaged if the article is directly stacked. For this reason, panels and the like are stored and loaded in a cardboard box, and other products are not loaded on the product. In addition, panels and the like are housed in a container without a lid, and the product is protected so as not to be directly stacked on the product. In addition, the product is loaded in a hermetically sealed state by loading the product on a pallet and winding and fixing the side of the product and the pallet with a stretch film to prevent the product from shifting.

  The above-described loading method has a drawback that it takes time to load articles on pallets and containers. Therefore, a shelf-shaped pallet rack is installed in a container, and a product is loaded on each shelf of each pallet rack and transported. In this case, there is no risk of damage due to the space above the product on the shelf of the pallet rack.

JP-T-2001-502643

  However, when an article is transported using such a pallet rack, the return flight after unloading the article is often an empty flight on which another article is not mounted, which increases the transportation cost. . On the other hand, in order to reduce the transportation cost, when an article different from the article conveyed on the outbound flight is loaded on the outbound flight, the shape and size of the article are often different, and the space of each shelf of the pallet rack In some cases, it could not be loaded or it was difficult to load. In this case, a pallet rack that occupies a large space is a hindrance, and there is a drawback that the article loading space on the return path becomes small.

  SUMMARY OF THE INVENTION In view of such circumstances, the present invention provides a pallet rack, a pallet rack unit, and a container that can secure a wider loading space than before even when transporting articles having different dimensions and shapes. And

A pallet rack according to the present invention is a foldable pallet rack provided with a loading table in which a plurality of sub beams are bridged between opposed beam members, each of which has a beam member connected to a support column. The sub- beam includes two beam members separated in the middle in the length direction , and the inner ends of the two beam members are rotatably connected by a shaft portion so as to be bent. is, the outer end of the two beams is rotatably supported around the support shaft attached to the beam member, respectively, the beam member is provided push-up member for urging in a direction to push up the base portion component of the sub-beams The push-up member includes a top that presses the sub-beam in the push-up direction and whose advance / retreat range is restricted in the push-up direction, and an elastic member that urges the sub-beam in the push-up direction . It is characterized by that.
According to the pallet rack of the present invention, the article and the pallet are removed from the loading platform on which the sub beam is bridged, so that the sub beam is pushed up and bent by the push-up member, and further folded by being bent away from the push-up member manually. When the article or / and the pallet are placed on the sub beam loading table, the sub beam is held in a straight line against the urging force of the push-up member by the weight. For this reason, the pallet rack occupies a small space when folded, and other articles can be placed in the empty space. In addition, since the push-up member is provided at the base portion near the rotation axis of the sub beam, the sub beam can be pushed up greatly with a short push-up stroke.

  According to the pallet rack according to the present invention, the sub-beam, which is a loading table for articles and pallets, is urged in the pushing-up direction. When the pallet or the article is removed, the sub beam is pushed up to be bent. Therefore, when the pallet rack is not in use, the pallet rack can be folded to secure a large space for storing other articles.

It is a perspective view of the container which accommodated the pallet rack by the Example of this invention. It is a perspective view of the pallet rack which loaded the pallet. (A), (b), (c) is a perspective view which shows the folding process of a pallet rack. (A), (b), (c) is a perspective view which shows the bending process of a sub beam. It is sectional drawing which shows the raising member of a sub beam, (a) is a figure of the state which mounted the article, (b) is a figure of the state which bent the sub beam with the raising member, (c) is the state of further pushing up the sub beam. FIG. It is a figure of the state which bent the sub beam. (A), (b), (c) is a side view which shows the folding process of the stabilizer of a pallet rack. It is a fragmentary perspective view which shows the wheel provided in the leg part of each support | pillar of a pallet rack, and the guide groove provided in the board | substrate of the container. It is sectional drawing which shows the wheel of the pallet rack shown in FIG. 8, (a) is a figure before loading an article | item, (b) is the figure which loaded the article | item. It is a perspective view of the container which accommodated the pallet rack except a pallet. It is a perspective view of the container of the state which folded the pallet rack. It is a figure which shows the folded pallet rack provided with the locking tool. It is a side view of the pallet rack provided with the modification of the stabilizer. It is a principal part perspective view which shows the state which loaded the other goods which do not use a pallet on the pallet rack.

The pallets according to the embodiment of the present invention, and so the bending by the first stage push-up of the service Bubimu pushed by the push-up member, O bent by pushing up the second stage remote from the further lifting member is carried out It is characterized by that.
According to the present embodiment, when a pallet or an article is removed from the sub beam which is a loading platform of the pallet rack, the top of the push-up member protrudes outward by the urging force of the elastic member such as the spring member and pushes the sub beam to the first stage. The pallet rack is in a folded state by further pushing up the sub-beam and then bending the sub-beam manually to separate it from the frame and pushing it up in the second stage. Therefore, the pallet rack is held in a folded state without loading pallets or articles, and the folding can be easily performed based on the urging force of the push-up member.

In addition, a stabilizer is provided to connect the strut connected to the opposite beam member and the strut connected to the other beam member, and the stabilizer can be folded or folded by bringing a pair of opposing struts close to each other. It is preferable that
As a result, when the pallet rack bends the sub beam, the stabilizer is folded or folded following the approach of the struts in conjunction with the approach of the struts connected via the beam members. Can be folded smoothly without twisting.

In addition, a wheel is attached to the lower end of the column, and the column can be advanced and retracted in the longitudinal direction with respect to the wheel by an elastic member. When an article or / and pallet is loaded on the sub beam, the elastic member is compressed. Then, the lower end portion of the column may be lowered relative to the wheel and locked.
In a state where no article or pallet is loaded on the sub beam of the pallet rack, the pallet rack including the support column is held at the raised position separated from the wheel by the urging force of the elastic member, and the pallet rack can be moved by the wheel. On the other hand, when an article or / and a pallet is loaded on the sub beam, the pallet rack including the support is lowered in a direction overlapping the wheel against the urging force of the elastic member due to the weight of the article or / and the pallet. Is locked at a lowered position where it comes into contact with the floor surface or the substrate or the like, and prevents movement by the wheels.

Further, the pallet rack unit according to the present invention is characterized in that a plurality of the above-described pallet racks are integrally formed, and struts that are close to or in contact with each other are integrally formed.
According to the pallet rack unit of the present invention, by forming a plurality of pallet racks integrally, many articles can be placed on the sub-beam, and the number of support columns can be reduced, so that the number of parts can be reduced and the manufacturing cost is low. become.

The container according to the present invention is characterized in that a substrate and side walls formed around the opening are provided, and the substrate is provided with one or more foldable pallet racks.
According to the present invention, a plurality of pallet racks can be stored and held in a container and transported. For example, after an article is loaded and transported on each pallet rack in the forward path, another article having a different size or shape is returned on the return path. When loading and transporting, multiple pallet racks housed in containers can be folded to set a large free space to secure a space for loading other articles, reducing space waste during round-trip transportation Can be transported.

Further, the substrate may be formed with a guide groove for guiding the traveling of the wheel provided at the lower end portion of the support column, and the pallet rack can be easily taken in and out of the container along the guide groove.
The substrate may be detachable, in which case it can be replaced with a substrate without a guide groove, and the pallet rack according to the present invention can be stored and transported to an existing container.

A pallet rack and a container according to an embodiment of the present invention will be described below with reference to FIGS.
In FIG. 1, a container 1 according to an embodiment of the present invention is formed, for example, in a substantially rectangular parallelepiped frame shape as a whole, and includes a substrate 2 and side walls 3 provided on three sides around the substrate 2. The side wall 3 is not provided on the remaining side surface of the container 1, and an opening 4 and a door are provided. A plurality of guide grooves 5 are formed on the substrate 2 of the container 1 in parallel from the opening 4 toward the inner flange at predetermined intervals.
The container 1 is used for land transportation, sea transportation, aircraft transportation, and the like, and carries various articles. In this embodiment, the container 1 is loaded on a ship and used for sea transportation.
A plurality of single pallet racks 7 for placing articles for loading are provided in the container 1, and each pallet rack 7 is accommodated in the container 1 so as to be detachable along a pair of guide grooves 5. Yes. Each pallet rack 7 shown in FIG. 1 has a pallet 8 on which an article P is placed.

The pallet rack 7 shown in FIG. 2 has, for example, three stages for loading articles, and a pallet 8 is mounted on each stage. The pallet rack 7 shown in FIGS. 2 and 3 is supported on the substrate 2. The four struts 10 provided in the pallet rack 7 having a substantially rectangular parallelepiped frame shape are a pair of front struts 10a and 10a and back struts 10b and 10b that constitute two opposing side surfaces. Two upper and lower beam members 11 are fixed to the front columns 10a and 10a and the back columns 10b and 10b, respectively. Here, for example, the upper beam member 11 is denoted by reference numeral 11a, and the lower beam member 11 is denoted by reference numeral 11b. The upper beam members 11a and 11a and the lower beam members 11b and 11b are fixed to face each other.
A plurality (three in the figure) of sub-beams 12 that can be bent are extended and bridged on the upper beam members 11a and 11a in the orthogonal direction. Similarly, a plurality of sub-beams 12 that can be folded in the middle are also bridged in the orthogonal direction on the lower beam members 11b and 11b. The plurality of sub-beams 12 and 12 on the upper and lower stages constitute a loading table for the articles P and the like.
Further, on the other two side surfaces of the pallet rack 7 facing each other, for example, a substantially H-shaped stabilizer 14 is rotatably supported at each end portion 14a on the front column 10a and the back column 10b.

Next, the sub beam 12 will be described with reference to FIGS.
In FIG. 4, the sub beam 12 is composed of, for example, two beam members 15 and 16 having an equal length. These beam members 15 and 16 are supported by the beam members 11 and 11 by a pair of fixing plates 18 and 18 having a substantially L-shaped cross section fixed to both sides of the outer end portions 15a and 16a, and are attached to the fixing plates 18 and 18, respectively. It can be rotated around the support shaft 19. By providing the support shaft 19 at the center of the sub beam 12, the sub beam 12 is divided substantially evenly when folded, so that the shape of the folded beam can be balanced and the volume thereof can be reduced.
In FIG. 4A, the inner end portions 15 b and 16 b of the beam members 15 and 16 are connected to each other by a shaft portion 21 so as to be rotatable. One beam member 15 has an inner end portion 15 b having a notch step portion 22 and is formed in an arc shape around the shaft portion 21. The other beam member 16 is formed in a U-shaped cross section so that the inner end portion 16 b is fitted and fitted until the inner end portion 15 b of the beam member 15 is engaged with the notch step portion 22. It can be turned.
When the inner end portions 15b and 16b of the beam members 15 and 16 are fitted to each other as shown in FIG. 4B, no step is formed between them. In addition, when the sub beam 12 is bent by being pushed up, the inner ends 15b and 16b of the beam members 15 and 16 are smoothly bent and rotated around the shaft portion 21 (see FIG. 4C).
In the embodiment shown in FIG. 3, with respect to the fitting structure of the beam members 15, 16 in the plurality of sub beams 12, a configuration in which the notched step portion 22 is provided in one beam member 15 and the other beam member 16 is fitted. However, a structure opposite to this, that is, a structure in which the beam member 16 is provided with the notch step portion 22 may be adopted. And the beam member which provides the notch step part 22 in the some sub beam 12 may be formed by turns of the beam member 15 and the beam member 16 along the sequence direction. In this case, the supporting strength of the articles on the loading table by the plurality of sub beams 12 is further stabilized.

Next, the push-up member 23 of the beam members 15 and 16 will be described with reference to FIGS. In FIG. 5A, support portions 17 and 17 provided on the lower side of the outer end portions 15a and 16a of the beam members 15 and 16 are fixed to the beam members 11 and 11 with bolts or the like. Each support portion 17 is provided with a locking plate 17a and a guide cylinder 17b, and a frame 24 having flange portions at the upper and lower ends is provided so as to be able to reciprocate in a vertical range through the hole of the locking plate 17a. It has been. A spring member 25 for urging the frame 24 in a direction to push the beam members 15 and 16 upward is mounted in the guide tube 17b.
When the pallet 8 and / or the article P is loaded on the sub beam 12, the beam members 15 and 16 of the sub beam 12 push the frame 24 and compress the spring member 25 against the biasing force. Then, the beam members 15 and 16 are brought into contact with the guide cylinders 17b and 17b and are held in a straight line (see FIG. 5A). In addition, by placing at least the pallet 8 or the article on the sub beam 12, the sub beam 12 is held in a linearly expanded state.
When the pallet 8 or the article is removed from the sub beam 12, the top 24 protrudes from the guide tube 17b by the urging force of the spring member 25, pushes the beam members 15 and 16 up, and rotates around the support shaft 19 (FIG. 5). (See (b)). As a result, the beam members 15 and 16 are bent into a U-shape, and the sub beam 12 is not stretched in the folding direction in a horizontal state, and can be reliably folded.
Further, when the pallet rack 7 is folded and the front columns 10a and 10a and the back columns 10b and 10b are brought close to each other, the beam members 15 and 16 are folded away from the frame 24 (see FIGS. 5C and 6).
Since the push-up member 23 is provided at the base portion near the rotation axis of the sub beam 12, the sub beam 12 can be pushed up largely by a small stroke of the frame 24 by the spring member 25. On the other hand, if the push-up member 23 is away from the base portion, the stroke of the frame 24 is long and the spring force by the spring member 25 must be made stronger.

Next, the stabilizer 14 will be described with reference to FIG.
In FIG. 7A, the stabilizer 14 attached between the support columns 10a and 10b includes a pair of arms 27 and 27 that are pivotally connected to the support columns 10a and 10b, respectively, and two upper and lower arms. The free ends of 27 and 27 are formed in a substantially H shape by a connecting rod 29 that rotatably connects the support shafts 28 and 28. It is assumed that the support shafts 28 and 28 are located on the same vertical plane as the shaft portion 21 of the sub beam 12.
The stabilizer 14 always receives a force in the direction in which the arms 27 and 27 rotate downward by its own weight. For this reason, when the pallet rack 7 starts to be folded, the stabilizer 14 is interlocked and bent downward by the support shafts 28 and 28 under its own weight. When the pallet rack 7 is folded, the columns 10a and 10b are connected by the stabilizer 14, and thus move in parallel without being twisted.

Next, the leg part 29 provided in the lower end of each support | pillar 10 of the pallet rack 7 is demonstrated using FIG.8 and FIG.9.
Each support column 10 of the pallet rack 7 is formed in, for example, a substantially L-shaped cross section, and a wheel 30 and a receiving portion 31 are provided on a leg portion 29 at the lower end thereof. The accommodating part 31 is formed in, for example, a substantially U-shaped cross section. The accommodating portion 31 is provided with a first locking plate 32 and a second locking plate 33 spaced apart in the vertical direction, and the support shaft 34 is relatively passed through the first and second locking plates 32, 33. It can be moved up and down. A stopper 35 is provided at the upper end of the support shaft 34, and the wheel 30 is rotatably supported at the lower end via a support frame 36. A spring member 37 is mounted as an elastic member between the support frame 36 and the second locking plate 33.
On the other hand, in FIG. 9, as described above, the guide groove 5 in which the wheel 30 of each column 10 travels is formed on the substrate 2 of the container 1, and the outer side of the guide groove 5 is slightly shallower than the guide groove 5. A stop groove 39 is formed. A guide wall 40 that regulates the position of the column 10 is fixed to the substrate 2 outside each guide groove 5.

In FIG. 9, with the wheels 30 provided at the lower ends of the respective columns 10 of the pallet rack 7 landing on the guide grooves 5 of the substrate 2, the pallets 8 and articles are placed on the pallet rack 7 as shown in FIG. In a state where P is not placed, the pallet rack 7 is held in the raised position by pushing the second locking plate 33 upward by the urging force of the spring member 37, and the lower end of the column 10 is separated from the substrate 2. ing.
Further, as shown in FIG. 9B, the pallet rack 7 is in the lowered position when the pallet 8 and / or the article P is placed, and the column 10 is pushed downward against the urging force of the spring member 37. The spring member 37 is compressed by the second locking plate 33. At the lowered position of the pallet rack 7, the lower end of the accommodating portion 31 of the support column 10 is pressed and locked by the locking groove 39 of the substrate 2, and the wheel 30 of the pallet rack 7 moves carelessly along the guide groove 5. To prevent.
A pin 36 a is provided on the support frame 36 of the wheel 30, and the notch groove 31 formed at the lower end of the accommodating portion 31 is slidably inserted into the pin 36 a, thereby restricting the lowering range of the pallet rack 7. Is done.
In addition, the support | pillar 10, the beam member 11, the sub beam 12, the stabilizer 14, etc. of the pallet rack 7 are formed with metals, such as iron-type steel materials, SUS, aluminum, and magnesium.

The pallet rack 7 according to the present embodiment has the above-described configuration. Next, a method for using the pallet rack 7 and a method for storing it in the container 1 will be described.
First, the pallet rack 7 is held in a folded state in which the front column 10a is brought close to the back column 10b as shown in FIG. . Since the pallet rack 7 is in the raised position, the accommodating portion 31 is raised upward with respect to the wheel 30 provided on the leg portion 29 of each support column 10a, 10b. And the accommodating part 31 is spaced apart from the latching groove 39 (refer FIG. 8, FIG. 9 (a)). Therefore, by pushing the pallet rack 7 in the folded state, the pallet rack 7 can be moved by the wheels 30 of the four support columns 10, and the predetermined holding position on the substrate 2 along the pair of guide grooves 5, 5 provided in the substrate 2 in the container 1. Move to.
When the article is placed on the pallet rack 7 in the storage state in the container 1, the front columns 10a and 10a and the back columns 10b and 10b are separated from each other in the folded pallet rack 7, and each sub beam 12 is separated. The beam members 15 and 16 shown in FIG. 3 (a) are expanded from the folded state to the state in which the articles can be stacked.

  In this state, when the pallets 8 on which the articles P are previously loaded are placed on the upper and lower sub-beams 12 (see FIG. 2), the beam members 15 and 16 are pushed up by the weights of the articles P and the pallets 8, respectively. The frame 24 is pushed and retracted into the guide cylinder 17b to compress the spring member 25 (see FIG. 5A). In addition, by placing the pallet 8 on which the article P is loaded in at least one of the upper stage and the lower stage on the sub beam 12, each sub beam 12 including the stage on which the pallet 8 is not placed can be placed on the article. It is preferable to balance the urging force of each spring member 25 and the weight of the pallet 8 so that it can be held.

  When the pallet 8 loaded with the articles P is placed on each of the upper and / or lower sub-beams 12, not only the spring member 25 of each push-up member 23 is compressed by its weight, but also each post 10 is slightly lowered. Thus, the spring member 37 provided on the leg portion 29 is compressed to hold the pallet rack 7 in the lowered state (see FIG. 9B). As a result, the lower end of the U-shaped cross section of the accommodating portion 31 in the leg portion 29 is seated in the locking groove 39 formed on both sides of the guide groove 5, so that the pallet rack 7 is held in a locked state on the substrate 2. Even if the ship etc. which accommodated 1 rocks, it does not move.

As shown in FIGS. 1 and 2, the pallet 8 can also be placed on the substrate 2 that is the lowest stage of the pallet rack 7.
By performing the above-described operation for each pallet rack 7, as shown in FIG. 1, it is possible to keep the article P placed on each stage of all pallet racks 7 stored in the container 1. By placing the articles P on the pallet racks 7 in this way, even articles that cannot be directly stacked can be neatly stacked without being damaged.

Next, an operation after the transportation by ship or the like is completed and the article is carried out from the container 1 will be described. In particular, a case will be described in which an article having a shape or a size different from that of the article P conveyed on the outbound path is loaded on the container 1 on the return flight after the article P is conveyed on the outbound path.
First, in FIG. 10, a large number of pallet racks 7 are accommodated in the container 1 along the guide grooves 5. When the pallets 8 loaded with the articles P are removed from the sub-beams 12 of the pallet racks 7, Is moved to the raised position by the urging force of the spring member 37 in the leg portion 29. Then, since the lower end of the accommodating portion 31 is separated from the locking groove 39, the pallet rack 7 can be moved in the guide groove 5 by the wheels 30 (see FIG. 9A).

Each pallet rack 7 removes the article P and the pallet 8, and the beam members 15 and 16 of each sub beam 12 cause the top 24 to protrude from the guide cylinder 17b by the urging force of the spring member 25 in the push-up member 23 provided at the base. . The frame 24 pushes the beam members 15 and 16 and moves up until the flange portion at the lower end thereof comes into contact with the locking plate 17a. Each of the beam members 15 and 16 is pushed upward and rotated about the shaft portion 19 to be in a bent state.
The front columns 10a, 10a and the back columns 10b, 10b are moved closer to each other while maintaining a parallel state by the stabilizer 14 in conjunction with the upward rotation of the beam members 15, 16. In conjunction with the approach of the front columns 10a, 10a and the back columns 10b, 10b, the stabilizer 14 is bent downward by the connection shaft 28 by its own weight (see FIGS. 3B and 7B).

Then, the sub beam 12 is further manually folded to be separated from the frame 24 of the push-up member 23, and the stabilizer 14 is also bent downward, so that the pallet rack 7 is in a folded state (FIG. 3C). (See 7 (c))
In this way, folding of all the pallet racks 7 is completed, and the pallet racks 7 are brought close to the side wall 3 on the back side of the container 1 as shown in FIG. Then, in FIG. 11, the space on the opening 4 side of the container 1 becomes a space, and other articles can be placed in this space and transported to the return path.

As described above, according to the pallet rack 7 and the container 1 according to this embodiment, the push-up member 23 including the top 24 and the spring member 25 is provided at the base of the sub-beam 12 that can be folded, on which the article P is placed. The pallet 8 can be bent by the urging force of the spring member 25 while the pallet 8 is removed, and the spring member 25 is compressed while the pallet 8 and the article P are placed on the sub-beam 12 so that the sub-beam 12 is It can be expanded to a loadable state.
Further, when the front column 10a and the back column 10b are brought close to each other, the stabilizer 14 is bent downward, so that the stabilizer 14 does not need to be provided with a spring member or the like, and can be bent and widened in a passive manner. Moreover, the stabilizer 14 can be folded or expanded while maintaining the parallel state without twisting the front column 10a and the back column 10b.

Further, since the pallet rack 7 places the pallet 8 and the article P on the sub-beam 12 and is held in the lowered position including the support column 10 by its weight, the lower end of the accommodating portion 36 in the leg portion 29 is engaged with the locking groove. The pallet rack 7 can be locked by being seated on 39. In this state, the pallet rack 7 and the article P can be firmly held without the pallet rack 7 moving carelessly.
Further, in a state where the pallet 8 and the article P are removed from the pallet rack 7, the urging force of the spring member 37 provided on the leg portion 29 is held at the raised position, and the vehicle can be moved by the wheels 30. Therefore, the folded pallet rack 7 can be moved to a predetermined position by running on the guide groove 5 provided in the substrate 2 in the container 1.
In addition, after the article P is placed and transported on the pallet rack 7 in the forward path, the vacant space on the substrate 2 in the container 1 is made by folding the article or the pallet 8 from the pallet rack 7 on the return path. It can be secured widely, and it is economical because other articles having different shapes and sizes can be placed and transported in a vacant space.

In addition, this invention is not limited to the pallet rack 7 and the container 1 by the above-mentioned Example, A various change can be performed unless the summary of this invention is changed. Next, a modification of the embodiment of the present invention will be described.
FIG. 12 shows the folded pallet rack 7 provided with a lock member 41 so as not to open unnecessarily. The locking member 41 is provided with locking plates 43 and 43 that hold the beam members 11 and 11 and the support columns 10 and 10 folded with respect to the base material 42 so as not to open.
In a state where the pallet rack 7 is folded, the two beam members 11a, 11a, 11b, 11b or the support columns 11a, 11b can be fitted and held by the lock member 41.

Next, FIG. 13 is a side view of the pallet rack 7 having a modification of the stabilizer 14.
In FIG. 13, a stabilizer 45 according to a modification is configured such that two arms 46, 46 intersect in an X shape, and a support shaft 28 is provided at the intersection, so that both free ends of the arms 46 are front struts. 10a and the back column 10b are slidably supported by shafts 47 and 47. Long grooves 48 and 48 for slidably supporting the shafts 47 and 47 of the respective arms 46 are formed in the front column 10a and the back column 10b.
Therefore, in the folded state of the pallet rack 7, the shafts 47 and 47 of the arms 46 of the stabilizer 45 are moved and folded outward in the vertical direction of the long grooves 48 and 48 of the columns 10a and 10b. The shafts 47 and 47 of the arm 46 are moved inward in the vertical direction of the long grooves 48 and 48 so that the sub beam 12 is linearly expanded.
Such a modification can also exhibit the same function as the above-described embodiment.

In addition, when a plurality of pallet racks 7 are arranged in the container 1 as shown in FIG. 1, four or two support columns 10 used between adjacent pallet racks 7 are arranged close to or in contact with each other. Yes. In this case, a plurality of support columns 10 arranged close to or in contact with each other may be formed as an integrated support column. In this case, the number of the support | pillars 10 can be reduced and cost can be reduced.
Further, the guide groove 5 may not be provided in the substrate 2. In this case, a stopper may be provided on the leg 29 of the pallet rack 7 and locked at a predetermined position.
Further, in the above-described embodiment, the article may be directly placed without placing the pallet 8 on the loading platform including the sub beams 12 of the pallet rack 7.
Further, the stabilizer 14 is configured to be foldable downward by its own weight, but may be folded to be foldable upward instead.

In addition, the articles P loaded on the pallet 8 are not limited to panels and the like, and include all articles such as those that are difficult to stack and irregular shapes.
In addition, as shown in FIG. 14, when the article placed on the sub beam 12 is a roll-like article Q around which a sheet-like film or paper is wound, the pallet 8 may not be used. A roll-shaped article Q may be inserted between the sub-beams 12 so that the shaft cores on both sides are suspended and supported by the sub-beams 12.

1 Container 2 Substrate 5 Rail groove 7 Pallet rack 8 Pallet 10 Post 10a Front post 10b Back post 11, 11a, 11b Beam member 12 Sub beam 15, 16 Beam member 14, 45 Stabilizer 23 Push-up member 24 Top 25, 37 Spring member 29 Leg 30 Wheel 31 Housing 34 Shaft 39 Locking groove

Claims (8)

A collapsible pallet rack provided with a loading platform in which a plurality of sub beams are bridged between the beam members opposed to each other , with a beam member connected to a column arranged opposite to each other .
The sub-beams comprises two beams members separated in the length direction intermediate portion, the inner end portions of the two beams member is capable disposed bent is pivotally connected by a shaft portion, wherein The outer ends of the two beams are respectively supported so as to be rotatable around a spindle attached to the beam member,
Wherein the beam member push-up member is provided for biasing in a direction to push up the base portion component of the sub-beam, the push-up member includes a frame which reciprocating range of directions is restricted pushed up together with the pressing in the direction pushing up the sub-beams, The pallet rack, comprising: the elastic member that urges the frame in a direction in which the sub-beam is pushed up .         2. The pallet rack according to claim 1, wherein the sub beam is bent by a first-stage push-up pushed by a push-up member and further bent by a second-stage push-up separated from the push-up member.   There is provided a stabilizer for connecting a strut connected to one of the opposing beam members and a strut connected to the other beam member, and the stabilizer can be folded or folded by bringing the pair of opposing struts close to each other. The pallet rack according to claim 1 or 2, which is enabled.   A wheel is attached to the lower end portion of the support column, and the support column can be moved back and forth in the longitudinal direction with respect to the wheel by an elastic member. When an article or / and pallet is loaded on the sub beam, the elastic member is compressed. The pallet rack according to any one of claims 1 to 3, wherein a lower end portion of the support column is lowered relative to the wheel to be locked.   5. A pallet rack unit, wherein the plurality of pallet racks according to any one of claims 1 to 4 are integrally formed, and columns that are close to or in contact with each other are integrally formed.   A side wall formed around a substrate and an opening is provided, and the substrate is provided with one or a plurality of foldable pallet racks according to any one of claims 1 to 4. Container.   The container according to claim 6, wherein a guide groove for guiding traveling of a wheel provided at a lower end portion of the pillar is formed on the substrate.   The container according to claim 6 or 7, wherein the substrate is detachable.

Images